void KBImageLoader::run()
{
QMutexLocker locker(&d->condLock);
// we enter the loop with d->needImage==true, so we will immediately
// try to load an image
while (true)
{
if (d->quitRequested)
break;
if (d->needImage)
{
if ( d->fileIndex == (int)d->fileList.count() )
{
if ( d->loop )
{
d->fileIndex = 0;
}
else
{
d->needImage = false;
emit(signalEndOfShow());
continue;
}
}
d->needImage = false;
d->condLock.unlock();
bool ok;
do
{
ok = loadImage();
if ( !ok)
invalidateCurrentImageName();
}
while ( !ok && d->fileIndex < (int)d->fileList.count());
if ( d->fileIndex == (int)d->fileList.count() )
{
emit(signalEndOfShow());
d->condLock.lock();
continue;
}
if ( !ok)
{
// generate a black dummy image
d->texture = QImage(128, 128, QImage::Format_ARGB32);
d->texture.fill(Qt::black);
}
d->condLock.lock();
d->fileIndex++;
if ( !d->initialized)
{
d->haveImages = ok;
d->initialized = true;
}
}
else
{
// wait for new requests from the consumer
d->imageRequest.wait(&d->condLock);
}
}
}
PresentationKB::PresentationKB(PresentationContainer* const sharedData)
: QGLWidget(),
d(new Private)
{
setAttribute(Qt::WA_DeleteOnClose);
setWindowFlags(Qt::X11BypassWindowManagerHint | Qt::WindowStaysOnTopHint | Qt::Popup);
QRect deskRect = QApplication::desktop()->screenGeometry( QApplication::activeWindow() );
d->deskX = deskRect.x();
d->deskY = deskRect.y();
d->deskWidth = deskRect.width();
d->deskHeight = deskRect.height();
move(d->deskX, d->deskY);
resize(d->deskWidth, d->deskHeight);
d->sharedData = sharedData;
srand(QTime::currentTime().msec());
readSettings();
unsigned frameRate;
if (d->forceFrameRate == 0)
{
int rate = 25;
QWindow* const handle = windowHandle();
if (handle)
{
QScreen* const screen = handle->screen();
if (screen)
{
rate = (int)screen->refreshRate();
}
}
frameRate = rate * 2;
}
else
{
frameRate = d->forceFrameRate;
}
qCDebug(DIGIKAM_GENERAL_LOG) << "Frame Rate : " << frameRate;
d->image[0] = new KBImage(0);
d->image[1] = new KBImage(0);
d->step = 1.0 / ((float) (d->delay * frameRate));
d->imageLoadThread = new KBImageLoader(d->sharedData, width(), height());
d->timer = new QTimer;
connect(d->timer, SIGNAL(timeout()),
this, SLOT(moveSlot()));
connect(d->imageLoadThread, SIGNAL(signalEndOfShow()),
this, SLOT(slotEndOfShow()));
// -- hide cursor when not moved --------------------
d->mouseMoveTimer = new QTimer;
connect(d->mouseMoveTimer, SIGNAL(timeout()),
this, SLOT(slotMouseMoveTimeOut()));
setMouseTracking(true);
slotMouseMoveTimeOut();
// -- playback widget -------------------------------
#ifdef HAVE_MEDIAPLAYER
d->playbackWidget = new PresentationAudioWidget(this, d->sharedData->soundtrackUrls, d->sharedData);
d->playbackWidget->hide();
d->playbackWidget->move(d->deskX, d->deskY);
#endif
// -- load image and let's start
d->imageLoadThread->start();
d->timer->start(1000 / frameRate);
}
